Franz brunck



(No Model.) 1 S P. BRUNOK.

COKE OVEN.

No. 516,184. Patented Mar. 13, 1894.

FA/g1 I WITNESSES: INVENTOR'.

q 'Ynoxa Bu-mack /ZM/% Wz/z- BY W Z ATTORNEY TM! NAYIUNAL LITHOGFAPNING COMPANY,

' WASNINGTON. a. c.

UNITED STATES OFFICE.

D m 1 A1 ENT FRANZ BRUNOK, DORTMUND, GERMANY.

COKE-OVEN.

SPECIFICATION forming part of Letters Patent No. 516,184, dated March 13, 1894.

Application filed March 14, 1893. Serial No. 4651956. (N0 model.)

To all whom it may concern:

Be it known that I, FRANZ BRUNoK, a subject of the King of Bavaria, residing'at Dortmund, in the Kingdom of Prussia, Germany, have invented new and useful Improvements in Coke-Ovens, of which the following is a specification.

This invention relates to the arrangement of the heating channels or flues of horizontal coke ovens having vertical wall-heating channel-systems. In coke ovens of this class constructed for recovering by-products, the heating of the upper part of the wall and in consequence thereof the output of the ovens is in most cases unsatisfactory. The upper part of the coal charge receives less heat than the lower; the coke will therefore be inferior in quality above and the coking period longer than below. On that account the output is inferior with reference to both quality and quantity, and the more so, the greater the difference in the duration of the coking periods in the upper and in thelower part of the oven.

The object of my invention is to essentially increase the efficiency of the wall-heating. In ovens of the above mentioned class having double separated wall heating channel systems in each partition wall, and where the upper horizontal connecting channels were up to the present time placed above the top of the oven chamber, these channels are by me placed below the top on the sides.

The nature of my invention will best be understood when described in connection with the accompanying drawings, in which Figure 1 represents a section taken transversely to the retorts. Fig. 2 is a section on the line a; to, Fig. 1, drawn to a smaller scale.

Similar letters and figures of reference designate corresponding parts.

The drawings show my arrangement for ovens, in which the wall heating channels are constructed within the masonry and the heating takes place from each of the two front sides by one sole-flame and two wall flames. In these drawings the letters It designate a series of horizontal retorts, heated by lateral flues and sole flues.

Air for combustion is supplied in the following manner: and 11 are cold air ducts closed at the ends and running longitudinally across the opposite fronts of the plant; 12 is an opentunnel placed parallel to the cold air ducts 10 and 11 and connected to duct 10 by passages 13, and to duct 11 by passages 14, flues- 15 and passages 16. 17 are passages for air leading from the respective ducts 10 and 11 into horizontal passages 18. 19 are combustion channels located at the outer ends of the retorts beneath and parallel with the same. Between the channels 19, and separated by partitions, are located channels 20, subsequently to be described. From the combustion channels 19 extend a series of upward flame flues 21 located on sides of the retorts and terminating in horizontal combustion channels 22, located below the arches of the retorts and extending along the sides of the same throughout their entire length. The products of combustion pass from the sole-channels 19 through the upward flameflues 21 into the combustion-channels 22, and then with the combustion-gases of the channels 22 through the downward flues 23 to the central part of the sole channel and from there through the flues and 24 to the chimney. The central parts of these combustion channels are connected with the channels 20 by downward flame flues 23, which latter communicate with the chimney flue 24, by downtakes 25 provided with dampers 26, which latter are accessible through the tunnel 12. The flame flues between any two retorts are separated by partition walls b. Gas from the condenser or other source is admitted to the lower combustion channels 19 through pipes 27, and to the upper channels 22, through pipes 28, (Fig. 2.)

In ovens with vertical, simple or double wall heating channel systems, heated principally from beneath the sole, the lower part of the coal charge is heated from three sides, namely from the two side walls and from the sole, and receives therefore an excessive quantity of heat to the prejudice of the upper part. To prevent excessive heating of the retorts at the lower front portions thereof, the upward flame flues 21 are contracted at their lower ends or entrances, as at a, and the walls of the retorts made thicker at the corresponding portions.

The essential advantages of this improvement are as followsz-Lss heat is carried forward with the gases at the lower parts of the wall, because on the one hand, owing to the smaller cross-section of the channel, the gases pass through at a greaterspeed and, on the other hand, owing to the greater thickness of the wall, the transmission of the heat takes place at a slower and diminished rate. The gases reach therefore the upper part of the wall in a hotter condition. The whirling motion of the burning gases in both horizontal and vertical channels, which produces an increased transmission of heat, is for the most part removed to a higher part of the wall. By this arrangement, therefore, not only a better heating of the upper part ofthe coal-charge, and in consequence a better quality of coke and quicker coking is attained, butat the same time the duration of the masonry of the oven is increased, as the most exposed lower layers of the wall are of greater thickness and can for this reason do their work for a longer time. The heating of the retort is effected by the sole flames 27 on the channel ends beneath the retorts R and by the wall-flames 28 in the wall channels 22. The'combustion air enters through the channels lO, 11, 17, 18 into the channels 19; On the way to the combustion chamber the air is heated'in the channels 10, 11, 17, 18. By the above-described arrangement of parts several advantages are obtained. The loss ofheat by radiation produced by the entirely useless heating. of the masonry above the oven top is reduced to a minimum. The excessive heating of the oven top is avoided, and in consequence thereof, on the one hand, the loss of heat absorbed by the gases filling the space. On the other hand the loss of by-products and heating power of the gas, which results from the highly pernicious overheating of the gas are avoided. The particularly large transmission of heat, which results from the slow and frequently whirling motion of the gas in the relatively large channel 22 as well as the heat resulting from the whirls naturally produced at the discharge of the vertical chan' nels into the horizontal channel 22, is acting for the most part directly on the coal-charge and intensities therefore the wall heating in the upper part of the oven to a remarkable degree. It results from the above, that with the new arrangement of the horizontal channel 22 the heat, which in the old arrangement was not only entirely wasted, outacted even in a particularly detrimental manner, is trans- .mittedinthe most advantageous way to the upper, hitherto insuflfiiciently heated part of the oven. A direct consequence thereof is thata better quality of coke and a quicker coking in the upper part of the oven is attained, and that the output of the oven, re-

garding quality as well as quantity is accordingly increased.

What I claim as new "is- 1. In a coke oven plant with double heating channel systems in each partition wall between two ovens, the combination of a series of horizontal retorts R, combustion channels 19 beneath the retort-s, horizontal combustion channels 22 on the sides of the retorts below the top arches, upward flameflues 21 on the sides of the retortsconnecting the two combustion channels, channels 20 located between channels 19, downward flame fines 23, connected to the channels 20 and with the upward flame flues 21 by the combustion channels 22, connections of channels 20 Withthe chimney, and supplies for air andgas, substantially as described.

2. In a coke oven plant with heating channel systemsin the partition walls between: the ovens, the combination of a series ofhorizontal retorts having increased thickness-of "sidewalls near the bottoms, combustion channels 19 beneath the retorts, horizontal combustion channels 22 on the sides of the retorts below the top arches, upward flame flues 21 on t the.

sides of the retorts connecting the two combustion channels, channels 20 located between channels 19, downward flame fines connected to the channels 20 and with the upward flame lines 21 by thecombustion channels 22; said flame fines 21and 23 being wider" in their body than below, connections ofchannels 20 with the chimney, and supplies for air.

and gas, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANZ BRUNOK.

W'itnesses:

WILLIAM EssENwEIN, RUDOLPH FRIOKE. 

